BESM stands for "Bolshaja Elektronno-Schetnaja Mashina" in Russian, which can be translated as "Large Electronic-Computing Machine" or simply "Large Computer".
BESM-6 was designed in S.A.Lebedev Institute of Precise Mechanics and Computing Equipment (ITMiVT in Russian) in the 1965. This is a mainframe type computer.
... start precessing around. (The precessing motion is perpendicular to the torque trying to make the gyro fall over.)
The axis of the gyroscope in the Dynabee is fixed to ...